1). Electronic configuration of Noble gas belonging to same period.?
2). Electronic configuration of second period element belonging to same period.?
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the noble gas configuration of an atom consists of the elemental symbol of the last noble gas to that atom followed by the configuration of the remaining electron.
A and e elements belong to same group because in the both last outermost Sushil the valency is won their first is belong to same group and element d&b belong to same period because both having a sem civil and to their first it's belong to same period.
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2, 3, 4, 5, 6, 7, 8, 9, 10, 11
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